Hi everybody, I would like to count how many times names in list L, nombreL, apear in list C, nombreC.
Can I improve the next program? cuenta <- 0 topL <- length(nombreL) topC <- length(nombreC) for (i in 1:topL) { for (j in 1:topC) { k <- grep(noquote(nombreL[i]),nombreC[j]) if (length(k) > 0){ cuenta <- cuenta + 1 } } ¿Is there a way to vectorizad? Thanks, Sebastián. Saludos, Sebastián. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.